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Published:
, doi: 10.1088/1674-1137/aca466

**Abstract:**

The nonlocal chiral effective theory is applied to investigate the electromagnetic and strange form factors of nucleon. The bubble and tadpole diagrams are included in the calculation. With the contributions from bubble and tadpole diagrams, the obtained electromagnetic form factors are close to the results without these contributions as long as the low energy constants

Published:
, doi: 10.1088/1674-1137/aca465

**Abstract:**

Dimuon events induced by charm-quark productions from neutrino deep inelastic scattering (DIS) processes have been studied in traditional DIS experiments for decades. The recent progress in neutrino telescopes makes it possible to search such dimuon events at energies far beyond laboratory scale. In this paper, we construct a simulation framework to calculate yields and distributions of dimuon signals in an IceCube-like km

^{3}scale neutrino telescope. Due to experimental limitation in the resolution of double-track lateral distance, only dimuon produced outside the detector volume are considered. Detailed information about simulation results for ten years exposure is demonstrated. Both an earlier work [

Published:
, doi: 10.1088/1674-1137/ac9b2c

**Abstract:**

In this study, the gravitational decoupling approach via extended geometric deformation is utilized to generate analytical black hole solutions owing to its simplicity and effectiveness. Considering the external fields surrounding Schwarzschild AdS black holes, we derive hairy black hole solutions in asymptotic AdS spacetime, satisfying the strong and dominant energy conditions. Moreover, we find that if the black hole spacetime is a fluid system, the fluid under each of these conditions is anisotropic.

Published:
, doi: 10.1088/1674-1137/aca38f

**Abstract:**

Using the perturbative QCD approach, we studied the effects from hadronic structure of photon on the pure annihilation rediative decays

Published:

**Abstract:**

The charge exchange spin-dipole (SD) excitations of

*J*as well as its slope parameter

*L*, a constraint from the extracted

*J*to

*L*to

Published:

**Abstract:**

In this paper, we perform the Tsallis Blast-Wave analysis on the transverse momentum spectra of identified hadrons produced in a wide range of collision systems at the Large Hadron Collider (LHC) including pp, pPb, XeXe and PbPb collisions. The kinetic freeze-out properties are investigated across these systems varying with the event multiplicity. We find that the extracted kinetic freeze-out temperature, radial flow velocity and the non-extensive parameter exhibit a universal scaling behavior for these systems with very different geometric size, especially when the independent baryon Tsallis non-extensive parameter is considered. This universality may indicate the existence of a unified partonic evolution stage in different collision systems at the LHC energies.

Published:
, doi: 10.1088/1674-1137/aca200

**Abstract:**

We present a general method of constructing unfactorizable on-shell amplitudes (amplitude basis), and build up their one-to-one correspondence to the independent and complete operator basis in effective field theory (EFT). We apply our method to the Standard Model EFT, and identify the amplitude basis in dimension 5 and 6, which correspond to the Weinberg operator and operators in Warsaw basis except for some linear combinations.

Published:
, doi: 10.1088/1674-1137/aca1ff

**Abstract:**

The

^{12}C+

^{12}C reaction rate plays an essential role in stellar evolution and nucleosynthesis. Nevertheless, uncertainties of this reaction rate are still large. We calculated a series of stellar evolution models with the near solar abundance from the zero-age main-sequence through presupernova stages for the initial masses of 20 M

^{12}C+

^{12}C reaction rates from two different works are used in our work. One is the rate obtained with Trojan Horse Method (THM) by Tumino et al. [

^{23}Na and some neutron-rich isotopes than Muk19. The difference in abundance ratios of Na/Mg, S/Mg, Ar/Mg and K/Mg between the two models are apparent. We compared Na/Mg obtained from our theoretical presupernovae models with Na/Mg in stellar atmospheres observed with high-resolution spectra as well as from the latest galactic chemical evolution model. Although Na/Mg obtained from THM is within 2

*σ*of the observed stellar ratio, the theoretical uncertainty of Na/Mg introduced by the uncertainty of the

^{12}C+

^{12}C reaction rate is almost equivalent to the standard deviation of astronomical observations. Therefore, a more accurate

^{12}C+

^{12}C reaction rate is crucial.

Published:
, doi: 10.1088/1674-1137/aca1aa

**Abstract:**

Within the NRQCD factorization framework, we compute the next-to-leading-order QCD corrections to the gluon fragmentation into the

Published:
, doi: 10.1088/1674-1137/aca1ab

**Abstract:**

The fission yield data in 14 MeV energy neutron induced fission of

^{238}U play an important role for decay heat calculation and for generation-IV reactor designs. In order to measure fission product yields (FPYs) of

^{238}U induced by 14 MeV neutrons accurately, the cumulative yields of fission products ranging from

^{92}Sr to

^{147}Nd in

^{238}U(n, f) with 14.7 MeV neutron have been determined using an off-line γ-ray spectrometric technique. The 14.7 MeV quasi-monoenergetic neutron beam was provided by K-400 D-T neutron generator at China Academy of Engineering Physics (CAEP). Fission products were measured by a low background high purity germanium gamma spectrometer. The neutron flux was obtained from

^{93}Nb (n,2n)

^{92m}Nb reaction, and the mean neutron energy was calculated by the cross-section ratios for the

^{90}Zr(n,2n)

^{89}Zr and

^{93}Nb(n,2n)

^{92m}Nb reactions. With a series of corrections, high precision cumulative yields of 20 fission products were obtained. Our FPYs for

^{238}U(n,f) reaction at 14.7 MeV were compared with the existing data at 14 MeV from Experimental Nuclear Reaction Data and Evaluated Nuclear Data, respectively. They are helpful to design of generation-IV reactor and the construction of evaluated fission yield database.

Published:
, doi: 10.1088/1674-1137/aca07c

**Abstract:**

We used the monodromy method to investigate the asymptotic quasinormal modes of regular black holes based on the explicit Stokes portraits. We found that for regular black holes with spherical symmetry and a single shape function, the analytical forms of the asymptotic frequency spectrum are not universal and do not depend on the multipole number, but rather on the presence of complex singularities and the trajectory of asymptotic solutions along the Stokes lines.

Published:
, doi: 10.1088/1674-1137/ac9fbe

**Abstract:**

The motto of this work is to generate a general formalism of

**K-**essence emergent geometry with the Dirac-Born-Infeld (DBI) variety of action, where

*ϕ*is the

**K-**essence scalar field. The emergent gravity metric

*ρ*), pressure (

*p*) and equation of state parameter (

*t*) based on parametric values are interestingly consistent with the dark energy domination and hence accelerating features. We also put some light on the corresponding energy conditions and constraints of the

Published:
, doi: 10.1088/1674-1137/ac9e4c

**Abstract:**

The CDF collaboration has announced a new measurement result of the

*W*boson mass recently, and it is in tension with the standard model (SM) prediction. In this paper, we will explain this anomaly in the vector-like quark (VLQ)

*W*boson mass. Besides, it can also be a solution to the

*T*, and

*B*quarks.

Published:
, doi: 10.1088/1674-1137/ac9fbb

**Abstract:**

In this work, the gravitational deflection angle of photon in the weak field limit (or the weak deflection angle) and shadow cast by the electrically charged and spherically symmetric static Kiselev black hole (BH) in the string cloud background are investigated. The influence of the BH charge

*Q*, the quintessential parameter

*γ*and the string cloud parameter

*a*is studied on the weak deflection angle using the Gauss-Bonnet theorem, on the radius of photon spheres and on the size of the BH shadow in the spacetime geometry of the charged-Kiselev BH in string clouds. Moreover, we study the effects of plasma (uniform and non-uniform) on the weak deflection angle and on the shadow cast by the charged-Kiselev BH surrounded by the clouds of strings. In the presence of uniform/nonuniform plasma medium, increase in the cloud of string parameter

*a*, increases the deflection angle

*α*. On the other hand decrease in the BH charge

*Q*, decreases the deflection angle. Further we observe that an increase of the BH charge

*Q*causes a decrease in the size of the shadow of the BH. We notice that with increase in the values of the parameters

*γ*and

*a*, the size of the BH shadow also increases and therefore the intensity of the gravitational field around the charged-Kiselev BH in string clouds increases. Thus the gravitational field of the charged-Kiselev BH in string cloud background would be stronger than the field produced by the pure Reissner-Nordstrom BH. Moreover, we use the data released by the Event Horizon Telescope (EHT) collaboration, for the supermassive BHs M87* and Sgr A*, to obtain constraints on the values of the parameters

*γ*and

*a*.

Published:
, doi: 10.1088/1674-1137/ac9fbd

**Abstract:**

By solving two body Dirac equations with potentials at finite temperature, we calculated the dissociation temperature

Published:
, doi: 10.1088/1674-1137/ac9fb9

**Abstract:**

In this paper, we investigate the influence of the angular momentum of a charged particle around Kerr-Newman-Taub-NUT black holes on the Lyapunov exponent, and find spatial regions where the chaos bound is violated. The exponent is obtained by solving the determination of eigenvalues of a Jacobian matrix in the phase space. Equilibrium positions are obtained by fixing the charge-to-mass ratio of the particle and changing its angular momentum. For certain values of the black holes' electric charge, NUT charge and rotational parameter, a small angular momentum of the particle, even if zero angular momentum, causes the violation of the bound. This violation disappears at a certain distance from the event horizon of the non-extremal Kerr-Newman-Taub-NUT black hole when the angular momentum increases to a certain value. When the black hole is extremal, the violation always exists no matter how the angular momentum changes. The ranges of the angular momentum and spatial regions for the violation are found. The black holes and particle rotating in the same direction and in the opposite directions are discussed.

Published:
, doi: 10.1088/1674-1137/ac9fba

**Abstract:**

Published:
, doi: 10.1088/1674-1137/ac9e9b

**Abstract:**

The reaction cross-sections of

^{238}U (n, γ)

^{239}U have been experimentally determined at the neutron energies of 6.117 ± 0.119 MeV, 4.626 ± 0.086 MeV and 3.622 ± 0.348 MeV employing the relative activation approach along with off-line γ-rays spectroscopy method. The D (d, n)

^{3}He reaction was utilized to obtain monoenergetic neutrons of the required energy and the

^{197}Au (n, γ)

^{198}Au reaction cross-sections were adopted as the referential standard to ascertain the neutron capture cross-sections of

^{ 238}U. Furthermore, the effects of low-energy scattered neutrons, neutron fluence fluctuation, the counting geometric corrections when measuring γ-rays, neutrons and γ-rays self-absorption caused by samples thickness have been considered and revised in the present work. For comparison with experimental results, the cross-sections of

^{238}U (n, γ)

^{239}U reaction were calculated theoretically with original parametric TALYS-1.9 program. The experimental measurements were also in contrast with previous experimental results and the evaluation data available for ROSFOND-2010, CENDL-3.2 and ENDF/B-VIII.0.

Published:
, doi: 10.1088/1674-1137/aca00d

**Abstract:**

The ground vector

Published:
, doi: 10.1088/1674-1137/ac9fb8

**Abstract:**

In relativistic heavy ion collisions, the fluctuations of initial entropy density convert to correlations of final state hadrons in momentum space, through collective expansion of the strongly interacting QCD matter. We ask by using a (3+1)D viscous hydrodynamic program CLVisc whether the nuclear structure, which provides initial state fluctuations as well as correlations, can affect the final state of heavy ion collisions, whether one can find signals of

*α*cluster structure in oxygen using the final state observables in

*α*clusters, the deformed Woods-Saxon distribution as well as a spherical symmetric Woods-Saxon distribution. Our results show that the charged multiplicity as a function of centrality and the elliptic flow at most central collisions using 4-

*α*structure differs from Woods-Saxon and deformed Woods-Saxon distributions, which may help to identify the

*α*clustering structures in oxygen nuclei.

Published:
, doi: 10.1088/1674-1137/ac9f0a

**Abstract:**

The paper considers a principal possibility of creating a nuclear light source of the vacuum ultra violet (VUV) range based on the

*γ*quanta in the VUV range. The luminosity of the Thorium nuclear light source is approximately

*γ*radiation from the

Published:
, doi: 10.1088/1674-1137/ac9e9a

**Abstract:**

An

*α*-transfer and cluster-decay experiment,

*α*+

*α*, was performed at a beam energy of 96 MeV. Both the recoil and the decay

*α*particles were detected in coincidence, allowing to deduce the energy-momentum of

*Q*-value and excitation-energy spectra, the relative decay widths for each resonant state in

Published:
, doi: 10.1088/1674-1137/ac9e4b

**Abstract:**

An analysis of the breakup of the

Published:
, doi: 10.1088/1674-1137/ac9dea

**Abstract:**

The decay constants of the low lying S-wave

Published:

**Abstract:**

So far, the behavior of the pionic leading-twist distribution amplitude (DA)

*ξ*-moments calculated with QCD sum rules based on the background field theory, we perform an analysis for several commonly used models of the pionic leading-twist DA in the literature, such as the truncation form of the Gegenbauer polynomial series, the light-cone harmonic oscillator model, the form from the Dyson-Schwinger equations, the model from the light-front holographic AdS/QCD and a simple power-law parametrization form.

Published:
, doi: 10.1088/1674-1137/ac9de9

**Abstract:**

Recently, some progresses have been made on the double-heavy tetraquarks in the experiments, such as

Published:
, doi: 10.1088/1674-1137/ac9d29

**Abstract:**

Using electron-positron annihilation data samples corresponding to an integrated luminosity of 4.5 fb

Published:

**Abstract:**

In this article, a new class of solutions of Einstein-Maxwell field equations of relativistic strange quark star obtained in dimensions

*R*is termed as a parameter related to curvature of the space-time and

*b*is the radius of the star. Spheroidal parameter

*λ*used here is to define metric potential of the

*λ*. The maximum mass for a given surface density (

*D*. The generalized Buchdahl limit for a higher dimensional charged star is also obeyed in this model. It is found that in this model, one can predict the mass of a strange quark star using suitable value of electric charge (

*Q*) and bag constant (

*B*). Energy and stability conditions are also satisfied in the present model. Stability is also studied considering the dependence of the Lagrangian perturbation of radial pressure (

Published:
, doi: 10.1088/1674-1137/ac9893

**Abstract:**

Besides the Coulomb displacement energy, the residual differences of binding energies between mirror nuclei (a pair of nuclei with the same mass number plus the interchanged proton and neutron numbers) are contributed to the shell effect via the valence scheme in the present study. To this end, one linear combining type of the valence nucleon number, namely

Published:
, doi: 10.1088/1674-1137/ac9895

**Abstract:**

Using

Published:
, doi: 10.1088/1674-1137/ac9894

**Abstract:**

Using gauge/gravity duality, we study the potential energy and the melting of triply heavy baryon at finite temperature and chemical potential in this paper. First, we calculate three-quark potential and compare the results with quark-antiquark potential. With the increase of temperature and chemical potential, the potential energy will decrease at large distances. It is found that the three-quark potential will have an endpoint at high temperature and/or large chemical potential, which means triply heavy baryons will melt at enough high temperature and/or large chemical potential. We also discuss screening distance which can be extracted from the three-quark potential. At last, we draw the melting diagram of triply heavy baryons in the

Published:
, doi: 10.1088/1674-1137/ac9897

**Abstract:**

A new Goldstone particle named Majoron is introduced in order to explain the origin of neutrino mass by some new physics models assuming that neutrinos are Majorana particle. By expanding signal region and using likelihood analysis, it becomes possible to search for Majoron at experiments that is originally designed to search for

**ISSN** 1674-1137 **CN** 11-5641/O4

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